63 lines
878 B
C++
63 lines
878 B
C++
#ifndef __TABLEREF_H__
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#define __TABLEREF_H__
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#include <stdio.h>
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namespace hsql {
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class SelectStatement;
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/**
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* TableRef
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* Holds reference to tables. Can be either table names or a select statement.
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*/
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typedef enum {
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kTableName,
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kTableSelect,
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kTableJoin,
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kTableCrossProduct
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} TableRefType;
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typedef enum {
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kJoinInner,
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kJoinOuter,
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kJoinLeft,
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kJoinRight
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} JoinType;
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typedef struct TableRef TableRef;
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struct TableRef {
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TableRef(TableRefType type) :
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type(type),
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name(NULL),
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alias(NULL),
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select(NULL),
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list(NULL),
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left(NULL),
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right(NULL),
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join_condition(NULL) {}
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virtual ~TableRef(); // defined in destructors.cpp
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TableRefType type;
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char* name;
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char* alias;
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SelectStatement* select;
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List<TableRef*>* list;
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// Join memberbs
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TableRef* left;
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TableRef* right;
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JoinType join_type;
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Expr* join_condition;
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};
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} // namespace hsql
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#endif
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